circumstances over which he had little or no control, kills another in a fit of passion, is not necessarily a dangerous criminal. In the majority of cases it is fair to assume that such an individual will never again in his life have to cope with a similar set of circumstances. The great majority of these people have led, up to that single crime of their life, an honest, peaceful existence, and the instances of an accidental criminal turning recidivist are extremely rare. Society looks on complacently at the repeated sentencing of the habitual criminal and watches without alarm the never failing phenomenon of how each successive imprisonment only serves to deprave him more profoundly; it never considers the danger of letting this type of criminal loose to prey upon it; just so he has served his just and legally prescribed sentence. But let the victim of the "insanity dodge" prejudice endeavor to gain his freedom, and society is at once up in arms. Thus the matter stands, and until the public learns to know its criminals as they actually are, this problem will remain unsolved. The prognosis of the acute prison psychotic complex is good in the majority of instances. The removal to a hospital régime usually serves to put a stop to the process and it is important for the expert witness to bear this in mind for obvious reasons. We have thus far discussed the psychoses developing in prisoners awaiting trial, and we shall now turn to that group of cases which are sent to us from penal institutions which serve for the confinement of the convicted criminal. At the outset we shall endeavor to draw a distinction between the class of individuals we have just discussed, and that which we are about to consider now. We have seen that the former is made up of individuals who in most instances have come in conflict with the law for the first time, and that the mental disorder which they develop stands in the closest relation with some definite experience in their life. The patients who come to us from prisons and penitentiaries on account of some mental disorder which developed while they were undergoing sentence are in most instances habitual criminals with a marked criminal career back of them. They differ so essentially from the preceding group, that what has been said about the former can hardly apply here.